CN219551798U - Airtight detection device of square shell cell sealing nail welding - Google Patents
Airtight detection device of square shell cell sealing nail welding Download PDFInfo
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- CN219551798U CN219551798U CN202223542042.7U CN202223542042U CN219551798U CN 219551798 U CN219551798 U CN 219551798U CN 202223542042 U CN202223542042 U CN 202223542042U CN 219551798 U CN219551798 U CN 219551798U
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- pressing plate
- air inlet
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- pressure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model provides a welding airtight detection device for a square shell battery cell sealing nail, which comprises a base, a lower pressing plate structure, an upper pressing plate structure, an air inlet elbow, a pressure relief meter, a pressure gauge, an air source valve and a hose, wherein the air inlet elbow is arranged on the base; the lower pressure plate structure is fixedly connected above the base through four support posts, the upper pressure plate structure is fixedly connected above the lower pressure plate structure through threaded connection of screws when the pressure gauge is used, an air inlet elbow is fixedly connected below the lower pressure plate structure, the air inlet elbow is connected with a pressure relief meter through a hose, the pressure relief meter is connected with a pressure gauge through a hose, and the pressure gauge is connected with an air source valve through a hose. The utility model has the beneficial effects that: the direct test and evaluation of the welding tightness of the sealing nails can be realized; the cost for detecting the tightness of the sealing nails can be reduced; simple structure, staff's convenient operation.
Description
Technical Field
The utility model belongs to the field of lithium battery air tightness detection, and particularly relates to a welding air tightness detection device for a square shell battery cell sealing nail.
Background
At present, power battery enterprises are vigorously developed, the battery yield is increased increasingly, the air tightness is one of the common problems of the battery in the processing and manufacturing processes, the phenomenon can further lead to overflow of electrolyte in the battery, the safe service performance of the battery is seriously affected, and even serious consequences such as explosion and ignition can be caused.
In the prior art, the square shell cell sealing nail cannot be independently tested and evaluated for technological effect, and the traditional tool for checking the air tightness is mostly not suitable for detecting the air tightness of the sealing nail, so that the welding effect evaluation cost of the square shell sealing nail is high.
Disclosure of Invention
In view of the above, the present utility model aims to provide a welding airtight detection device for a square-case cell sealing nail, so as to quickly and conveniently detect the welding tightness of the square-case cell sealing nail.
In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:
the welding airtight detection device for the square shell cell sealing nails comprises a base, a lower pressing plate structure, an upper pressing plate structure, an air inlet elbow, a pressure relief meter, a pressure gauge, an air source valve and a hose; the lower pressure plate structure is fixedly connected above the base through four support posts, the upper pressure plate structure is fixedly connected above the lower pressure plate structure through threaded connection of screws when the pressure gauge is used, an air inlet elbow is fixedly connected below the lower pressure plate structure, the air inlet elbow is connected with a pressure relief meter through a hose, the pressure relief meter is connected with a pressure gauge through a hose, and the pressure gauge is connected with an air source valve through a hose.
Further, the lower pressing plate structure is integrally fixed above the support column; the lower pressure plate structure comprises: a lower pressing plate and a lower sealing ring; the four end corners of the lower pressing plate are provided with first screw holes, and threads are arranged in the lower pressing plate; the two ends of the lower pressing plate are provided with pin holes; the center of the lower pressing plate is provided with an air inlet hole in a penetrating way, and the lower end of the air inlet hole is fixedly connected with an air inlet elbow; a plurality of annular boss structures are fixedly connected to the inside of the air inlet hole; the lower end of the air inlet hole is fixedly connected with an air inlet elbow which is a right angle.
Further, a lower sealing ring groove is formed in the upper surface of the lower pressing plate, and the lower sealing ring groove is concentric with the air inlet hole; the lower seal ring groove is internally provided with a lower seal ring in a sealing way.
Further, the upper pressing plate structure comprises: an upper pressing plate, a guide post and an upper sealing ring; second screw holes are formed in four end corners of the upper pressing plate; guide posts are fixedly connected below the two ends of the upper pressing plate; an upper sealing ring groove is formed in the center of the lower surface of the upper pressing plate; an observation hole is formed in the center of the upper pressing plate in a penetrating manner, and the upper sealing ring groove and the lower sealing ring groove are coaxially arranged; the upper end of the observation hole is of a conical structure; an upper sealing ring is arranged in the upper sealing ring groove in a sealing way.
Further, a hose is fixedly connected to the other side of the air inlet elbow, and a pressure relief meter is fixedly connected to the other end of the hose; the right side of the pressure relief meter is fixedly connected with the pressure meter through a hose; the right side of the pressure gauge is fixedly connected with an air source valve through a hose.
Compared with the prior art, the welding airtight detection device for the square-shell battery cell sealing nail has the following advantages:
(1) The welding airtight detection device for the square-shell battery cell sealing nails can realize direct test and evaluation of the welding tightness of the sealing nails;
(2) The welding airtight detection device for the square-shell battery cell sealing nails can reduce the cost of detecting the tightness of the sealing nails;
(3) The welding airtight detection device for the square-shell battery cell sealing nail is simple in structure and convenient for operators to operate.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 is an exploded view of an embodiment of the present utility model;
FIG. 2 is a schematic diagram illustrating the operation of an embodiment of the present utility model;
FIG. 3 is a schematic diagram of the working front view of an embodiment of the present utility model;
FIG. 4 is a schematic diagram illustrating a working cross-section of an embodiment of the present utility model;
fig. 5 is a schematic top view of an embodiment of the present utility model.
Reference numerals illustrate:
1. a base; 11. a support post; 2. a lower platen structure; 21. a lower pressing plate; 22. a first screw hole; 23. a pin hole; 24. a lower seal ring groove; 25. an air inlet hole; 26. a lower sealing ring; 3. an upper platen structure; 31. an upper press plate; 32. a second screw hole; 33. a guide post; 34. an upper seal ring groove; 35. an observation hole; 36. an upper sealing ring; 4. a battery cover plate; 41. sealing nails; 5. an air inlet elbow; 6. a pressure relief gauge; 7. a pressure gauge; 8. an air source valve; 9. and (3) a hose.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
The utility model will be described in detail below with reference to the drawings in connection with embodiments.
The welding airtight detection device for the square shell cell sealing nails comprises a base 1, a lower pressing plate structure 2, an upper pressing plate structure 3, an air inlet elbow 5, a pressure relief meter 6, a pressure meter 7, an air source valve 8 and a hose 9; the lower pressure plate structure 2 is fixedly connected above the base 1 through four support posts 11, the upper pressure plate structure 3 is fixedly connected above the lower pressure plate structure 2 through threaded connection of screws, the lower pressure plate structure 2 is fixedly connected with an air inlet elbow 5, the air inlet elbow 5 is connected with a pressure relief meter 6 through a hose 9, the pressure relief meter 6 is connected with a pressure meter 7 through the hose 9, and the pressure meter 7 is connected with an air source valve 8 through the hose 9.
Four struts 11 are fixedly connected above the base 1.
The lower pressing plate structure 2 is integrally fixed above the support posts 11; the lower platen structure 2 includes: the lower pressing plate 21, the first screw hole 22, the pin hole 23, the lower sealing ring groove 24, the air inlet hole 25 and the lower sealing ring 26;
the four end corners of the lower pressing plate 21 are provided with first screw holes 22, and threads are arranged in the lower pressing plate; the two ends of the lower pressing plate 21 are provided with pin holes 23, and the diameter of each pin hole 23 is larger than that of the first screw hole 22; the center of the lower pressing plate is provided with an air inlet hole 25 in a penetrating mode, the lower end of the air inlet hole 25 is fixedly connected with an air inlet elbow 5, and a plurality of annular bosses are fixedly connected inside the air inlet hole 25 and are used for being firmer when the air inlet elbow 5 is connected; a lower sealing ring groove 24 is formed in the upper surface of the lower pressing plate 21, and the lower sealing ring groove 24 is concentric with the air inlet hole 25; the lower sealing ring 26 is arranged in the lower sealing ring groove 24 in a sealing way, the width of the lower sealing ring 26 is slightly larger than that of the lower sealing ring groove 24, the lower sealing ring 26 can be tightly attached to the inside of the lower sealing ring groove 24, the lower sealing ring 26 can be ensured not to generate displacement during working, and no air leakage occurs.
The upper platen structure 3 includes: the upper pressing plate 31, the second screw hole 32, the guide post 33, the upper sealing ring groove 34, the observation hole 35 and the upper sealing ring 36; the whole upper pressing plate structure 3 is connected with the bolt of the pin hole 23 through the guide post 33, so that the upper pressing plate structure 3 is movably arranged above the lower pressing plate structure 2; the four end corners of the upper pressing plate 31 are respectively provided with a second screw hole 32, the lower parts of the two ends of the upper pressing plate 31 are respectively fixedly connected with a guide post 33, the guide posts 33 are connected with the pin holes 23 through bolts, the guide posts 33 can be inserted into the pin holes 23, the whole upper pressing plate structure 3 can not displace horizontally when in use, and certain labor force can be reduced when the device is installed; an upper seal ring groove 34 is formed in the center of the lower surface of the upper pressing plate 31; the central part of the upper pressing plate 31 is provided with an observation hole 35 in a penetrating way, and the upper sealing ring groove 34 and the lower sealing ring groove 24 are coaxially arranged; the upper end of the observation hole 35 is of a conical structure so as to observe the air leakage condition during working; the upper sealing ring 36 is arranged in the upper sealing ring groove 34 in a sealing manner, the width of the upper sealing ring 36 is slightly larger than that of the upper sealing ring groove 34, the upper sealing ring 36 can be tightly stuck in the upper sealing ring groove 34, the upper sealing ring 36 can be ensured not to generate displacement during working, and no air leakage can occur.
The upper platen 31 is screwed and tightened with the first screw hole 22 after penetrating through the second screw hole 32 by using a screw during testing, thereby integrally fixing the upper platen structure 3 above the lower platen structure 2.
The lower end of the air inlet hole 25 is fixedly connected with an air inlet elbow 5, and the air inlet elbow 5 is a right angle.
The other side of the air inlet elbow 5 is fixedly connected with a hose 9, the other end of the hose 9 is fixedly connected with a pressure relief meter 6, and the model of the pressure relief meter 6 is HVL-602.
The right side of the pressure release gauge 6 is fixedly connected with a pressure gauge 7 through a hose 9, and the model of the pressure gauge 7 is IRV-10-C06; the right side of the pressure gauge 7 is fixedly connected with an air source valve 8 through a hose 9, and the model of the air source valve 8 is BHVU 10-2.
The specific working principle is that when the solar cell is used, the upper pressing plate structure 3 is firstly integrally lifted, the cell cover plate 4 and the lower pressing plate structure 2 are vertically placed at ninety degrees, the sealing nails 41 on the cell cover plate 4 are aligned with the air inlet holes 25, and then the guide posts 33 of the upper pressing plate structure 3 are aligned with the pin holes 23 of the lower pressing plate structure 2 and are inserted; when the upper pressing plate structure 3 is pressed down, screws are placed in the second screw holes 32, the upper pressing plate structure 3 is integrally pressed above the lower pressing plate structure 2 after four screws are screwed down, the lower sealing ring 26 is contacted with the lower surface of the battery cover plate 4, and the upper sealing ring 36 is contacted with the upper surface of the battery cover plate 4, so that the air tightness during testing is ensured; during testing, the fastened lower pressing plate structure 2 and upper pressing plate structure 3 are placed into a water storage box; then opening an air source valve 8, enabling air to pass through a hose 9, a pressure gauge 7 and a pressure relief gauge 6 to reach an air inlet elbow 5, starting to rise the air pressure at the moment, closing the air source valve 8 when the air pressure reaches a preset value, keeping the air pressure at the preset value for 1-2 minutes, observing whether bubbles emerge from an observation hole 35 of the upper pressing plate structure 3, simultaneously observing the value of the pressure gauge 7, and if the declining value is within a specified range, judging that the sealing nail is qualified, otherwise, judging that the sealing nail is unqualified; and after the test is finished, opening the pressure release table 6 to release pressure, and finishing the test after the pressure release is finished.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (9)
1. The utility model provides a sealed nail welding airtight detection device of square shell electricity core which characterized in that: the device comprises a base (1), a lower pressing plate structure (2), an upper pressing plate structure (3), an air inlet elbow (5), a pressure relief meter (6), a pressure meter (7), an air source valve (8) and a hose (9); the lower pressure plate structure (2) is fixedly connected above the base (1) through four support posts (11), the upper pressure plate structure (3) is fixedly connected above the lower pressure plate structure (2) through the threaded connection of screws, the lower pressure plate structure (2) is fixedly connected with an air inlet elbow (5), the air inlet elbow (5) is connected with a pressure relief meter (6) through a hose (9), the pressure relief meter (6) is connected with a pressure meter (7) through the hose (9), and the pressure meter (7) is connected with an air source valve (8) through the hose (9).
2. The square-shell cell sealing nail welding airtight detection device according to claim 1, wherein: the lower pressing plate structure (2) is integrally fixed above the support column (11); the lower pressure plate structure (2) comprises: a lower pressing plate (21) and a lower sealing ring (26); the four end corners of the lower pressing plate (21) are provided with first screw holes (22) and threads are arranged in the lower pressing plate; the two ends of the lower pressing plate (21) are provided with pin holes (23); and the center of the lower pressing plate is provided with an air inlet hole (25) in a penetrating way, and the lower end of the air inlet hole (25) is connected with an air inlet elbow (5).
3. The square-shell cell sealing nail welding airtight detection device according to claim 2, wherein: the lower end of the air inlet hole (25) is fixedly connected with an air inlet elbow (5), and the air inlet elbow (5) is a right angle.
4. The square-shell cell sealing nail welding airtight detection device according to claim 2, wherein: the inside of the air inlet hole (25) is fixedly connected with a plurality of annular boss structures.
5. The square-shell cell sealing nail welding airtight detection device according to claim 2, wherein: the upper surface of the lower pressing plate (21) is provided with a lower sealing ring groove (24), and the lower sealing ring groove (24) is concentric with the air inlet hole (25); the lower seal ring groove (24) is internally provided with a lower seal ring (26) in a sealing way.
6. The welding airtight detection device for square-shell cell sealing nails of claim 5, wherein: the upper pressing plate structure (3) comprises: an upper pressing plate (31), a guide post (33) and an upper sealing ring (36); second screw holes (32) are formed in four end corners of the upper pressing plate (31); guide posts (33) are fixedly connected below two ends of the upper pressing plate (31).
7. The square-shell cell sealing nail welding airtight detection device according to claim 6, wherein: an upper sealing ring groove (34) is formed in the center of the lower surface of the upper pressing plate (31); an observation hole (35) is formed in the center of the upper pressing plate (31) in a penetrating manner, and the upper sealing ring groove (34) and the lower sealing ring groove (24) are coaxially arranged.
8. The square-shell cell sealing nail welding airtight detection device according to claim 6, wherein: the upper end of the observation hole (35) is of a conical structure; an upper seal ring (36) is arranged in the upper seal ring groove (34) in a sealing way.
9. The square-shell cell sealing nail welding airtight detection device according to claim 1, wherein: the other side of the air inlet elbow (5) is fixedly connected with a hose (9), and the other end of the hose (9) is fixedly connected with a pressure relief meter (6); the right side of the pressure relief meter (6) is fixedly connected with a pressure meter (7) through a hose (9); the right side of the pressure gauge (7) is fixedly connected with an air source valve (8) through a hose (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223542042.7U CN219551798U (en) | 2022-12-27 | 2022-12-27 | Airtight detection device of square shell cell sealing nail welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223542042.7U CN219551798U (en) | 2022-12-27 | 2022-12-27 | Airtight detection device of square shell cell sealing nail welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219551798U true CN219551798U (en) | 2023-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223542042.7U Active CN219551798U (en) | 2022-12-27 | 2022-12-27 | Airtight detection device of square shell cell sealing nail welding |
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| Country | Link |
|---|---|
| CN (1) | CN219551798U (en) |
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2022
- 2022-12-27 CN CN202223542042.7U patent/CN219551798U/en active Active
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